Same technique and concept

A simple portrait, done with a simple light. I was looking at this picture that I found online. It was made with a soft light, used from the front. These are the differences that I should compare when I use light for photography, and light for a stage. Basically is the same concept and technique, but the equipment is different. For photography I can use a simple head flash with a softbox. And for a stage, I could use a spotlight (ETC Source 4), white light. All this lighting equipment is new to me. I have to be familiar with all this equipment. I'm very interested on it.